Monte Carlo estimation of absorbed dose to organs in diagnostic radiology

A method to estimate the absorbed dose to organs in diagnostic radiology was developed. The method is based on Monte Carlo techniques and has been prepared as a tool that can be adapted to any type of examination or view and which is readily available since it is used in a personal computer and not as a list of numerical results. It has been developed with the EGS4 system for static examinations in diagnostic radiology. A study was made of the absorbed doses to different parts of the head during a conventional x-ray examination. Simulation was performed for different arrangements (monoenergetic beam, spectrum, different number of histories, different size of cells, etc.). The method is capable of estimating doses in agreement with those measured experimentally and those obtained by other authors.